Question

A compound (molecular mass 64.59u) has the following data:
(table)
Elements A B C
Relative No. of atom 3.10 7.80 1.55
% Composition 37.215 7.8 54.98
Determine:
(i) Atomic masses of the elements A,B and C
(ii) Simplest atomic ratios of the elements
(iii) Molecular formula of the compound

Answer 1

Answer:

Step I : Calculation of the atomic masses of the elements <br> Atomic mass of element

<br> Atomic mass of

u <br> Atomic mass of

u <br> Atomic mass of

u <br> Step II. Calculation of simplest atomic ratios of the elements <br>

<br> Step III. Calculation of the molecular formula <br> Empirical formula of compound

<br> Empitical formula mass of the compound

u <br>

<br>

Molecular formula